Weather-strip for metal-window constructions.



A. M. LANE.

WEATHER STRIP FOR METAL WINDOW OONSTRUGTIONS.

APPLIOATION FILED AUG. 25, 1911.

Patented Jan. 7, 1913 ALFRED M. LANE, OF ST. LOUIS, MISSOURI, ASSIGNORT0 MONARCH METAL. 'WEQATHER,

STRIP COMPANY, OF ST. LOUIS, MISSO URI, A conronn'rro'n or MISSOURI.

WEATHER-STRIP FOR METAL-WINDOW CONSTRUCTIONS.

Specification of Letters Patent. Application filed August 25, 1911.

Patented J an. 7, 1913. Serial No. 646,022.

souri, have invented a new and us ful Improvement in leather-Strips fanMetal- Window Constructions, of which the following is'a specification.

This invention relates to weather strips and more particularly toweather strips or guards to be applied to metal window constructions.

Difficult-y has been experienced in applying weather strips to metalwindow constructions. Attempts have been made, with little or nosuccess, to produce a weather strip which can be applied generally tothe ordinary metal window frames and sashes, the principal faults beingin the manner of attachment and the lack of flexibility in the stri llly-invention, therefore, has for its principal objects to produce adevice which is inexpensive and easily applied to window sashes andframes constructed of metal, to produce a strip which possessessufiicient flexibility to permit of its application to windows whereinthere is considerable play between the sashes and guideways, and toattain certain other advantages hereinafter more fully appearing.

The invention consists in the parts and in the arrangements andcombinations of parts hereinafter described and claimed.

In the accompanying drawings which form part of this specification andwherein like symbols refer to like parts wherever they occur, Figure 1is a horizontal section through one side of the window casing andadjacent portions of the upper and lower" sashes; Fig. 2 is afragmentary perspective View of the rib strip member; Fig. 3 is asimilar view of the groove strip member; Fig. dis a fragmentary view,partly in horizontal section and partly in top plan and on an enlargedscale, showing the two cooperating weather strip members applied andFig. 5 is a fragmentary section through a portion of the wlndow casingadjacent to one of the burred perforations'which receive the securingscrews for the weather strip members.

The precise construction of the window frame or casing and sashes formsno part of my invention.

strips 8 and 9 are and window frame are punc- 1.

on a taper.

screws 12 and 13. As the screws Hence no detail description head 6 andouter guide strips or beads 7, as

shown, are formed integral with the Window casing. In fact, the shell ofthe side members of the window casing are constructed of single sheets.It is to be here noted, that in practically all metal window frameconstructions, access cannot be gained to the interior of the shellwhich makes it all the more difficult to apply weather strips, assecuring screws or bolts cannot be secured on the inside of the shellunless special provision is made in course of construction.

As shown in the drawings, the weather strip comprises two metal strips 8and 9, respectively. The strip 8 has one of its marginal portions rolledor beaded, as at 10, to provide an undercut groove, and the strip 9 hasone of its marginal portions rolled or beaded to provide an undercut rib11 which slidably fits in said groove 10. The strip 8 is secured nearits opposite margin by a series of screws 12 to the face of the windowsash, while the strip 9 is-secured by a series of screws 13 to the faceof the sash-retaining rib or bead 7 on the window frame.

In applying the fastening screws, the perforated to receive them and thesash tured with a taper punch. In punching the perforations in the sashand window frame burs 14 are turned up on the inside thereof After theholes have been are tapped to provide screw fit the threads of thesecuring are being applied and tightened, the burs 14- are drawn towardand impinged tight against the screws, forming an effective lock whichprevents the screws from working loose. By dipping the screws in saltwater or some other corrosive, the screws are further held by the rustand corrosion which eventually forms.

To prevent the strips 8 and 9 from bucpunched they threads which klingbetween the points where the screws.

are inserted, they are curled or flanged, as at 15, at their margins. Bythis arrangement, 1

bear flatwise against the sash 16and a bend device admits of strips onopposite sides and 9 do not or frame,as but bear at the edges of thebends 16 which are formed the base portions of the strips 8 the case maybe, ortions 15 and in said strips.

The portion of the strip 8 at the base of the bead 10 is offsetoutwardly so as to make room for the cooperating marginal portion of thestri 9 and ive some clearance between the latter an the face of thesash. The portion of the strip 9 between the bend 17 located adjacent tothe rib 11 is turned awa from the face of the retaining rib or bead 7 onthe window frame at a considerable angle.

Preferably, the strip 9 is made of a relatively resilient or pliablemetal, while the strip 8 is relatively rigid so that its groove bead 10will not be sprung out of shape when the strain is put upon it by theshifting of the window sash horizontally in its guideways. The strip 9being resilient or exible will yield to allow the sash the freedom ofits play in the guideways, and the rib head 11 of the strip 9 beingsmaller than the groove bead 10 of the strip 8 and its sides beingbrought close together at its base, it is suflicientl rigid toresistpulling strains. It is also held b the mouth portion of the groove beadw ich fits it snugly at the base. The an larly extended portions betweenthe ben s 16 andl7 of the two of the window frame permit the sash tohave considerable endwise movement horizontally, toward either side aswell as transversely.

Obviously, while the strip is set forth as being specially applicable tometal window constructions, it can be readily applied to' woodenconstructions. S0, too, it is obvious that the weather stri may beapplied to the parting stri or bea 6 instead of the retaining strip orad 7 as shown; and the considerable modification without departing frommy invent-ion. Therefore, I do not wish to be limited to the specificconstruction and arrangement shown. WhatI claim is:

1. A weather strip comprising two metal.

one adapted to be. fastened to the frame and theother to the windowsash, one of said strips being relatively rigid and having an offsetmarginal portion rovide'd wit I an undercut oove exten inglongitudinally thereof, an the other strip being relativelv flexible andhaving an strips, window in the groove 'undercut rib th ereon extendinglongitudinallynear one of its margins, said flexible strip underlyingthe offset portion of said rigid strip and the rib being slidably fittedof said other strip, the opposite marginal portion of said flexiblestrip extending at substantially right angles to said rigid strip, saidflexible strip being bent between its marginal portions so as to normallbe free from contact with the member to w ich said strip is secured.

2. Aweather strip comprising a relatively flexible metal strip adaptedto be fastened throughout its length near one of its margins, theintermediate portion of said strip being bent at an angle less than aright angle and the opposite marginal portion being bent atsubstantiallyright angles to said first mentioned marginal portion, the free marginalportion of the strip being rebent throughout its length to provide arib, and a relatively rigid metal strip adapted to be secured throughoutits length near one of its margins and the opposite marginal portionbeing adapted to overlap the marginal ortion of said flexible strip "onwhich the rib is formed, said overlapping marginal portion of the rigidstrip being rebent to form 'a groove adapted to slidably fit over saidrib..

3. The combination with the opposite sides of a window casing and a sashslidably fitted in said casing of relatively rigid metal strips securedthroughout their length near one margin to the exposed face of the sashadjacent to the sides of the window casing, the opposite marginalportions of said strips being free, and relatively flexible metal stripshaving one of their marginal portions arranged to overlap the freemarginal portions of the respectiverigid strips and slidably enga e thesame but being interloc ed therewith against lateral separation, theopposite marginal portions of said flexible strips being turned atsubstantially right angles to the first mentioned marginal portions andsecured throu hout their length to said window casing, is o'intermediateportions of said flexible strips being bent away fromthe respectivesides of the casing adjacent thereto.

Signed at St. Louis, Mo., this 18th'day of August, 1911.

' ALFRED M. LANE. Witnesses: y i G. A. PENNmc'foN,

Pawn Amine,

longitudinally

